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Thread: loading screen

  1. #1
    Registered User
    Join Date
    Oct 2008
    Posts
    33

    loading screen

    In the following function, getFormZender() takes 5 seconds to calculate. In the mean time I try to show a loading screen.
    It works but the loading screen comes AFTER the getFormZender() function is executed.
    It seems like switchDisplayable() is not fast enough and the rest of the code is executed first.

    Does somebody know how to do this better?

    Code:
      public void ZendersAction() {
            // enter pre-action user code here
            String __selectedString = getZenders().getString(getZenders().getSelectedIndex());
    
    	Gauge _gauge = new Gauge( null, false,
                                Gauge.INDEFINITE,
                                Gauge.CONTINUOUS_RUNNING );
    
            Alert _alert = new Alert( null );
            _alert.setString( "Bezig met laden..." );
            _alert.setIndicator( _gauge );
            _alert.setTimeout( 10000 );
    
            switchDisplayable(_alert,getZenders());
    
            FormZender = null;
            FormZender = getFormZender();
            FormZender.setTitle(__selectedString);
            switchDisplayable(null,FormZender);
        }

  2. #2
    Nokia Developer Expert
    Join Date
    Aug 2007
    Posts
    1,595

    Re: loading screen

    Hello twtb,

    how about this article on Forum Nokia Wiki?:

    Series 40: Considerations regarding MIDlet startup and runtime execution

    Basically the article is about startup but it could apply here as well as for designing the application to perform tasks in separate threads.

    Regards,
    r2j7
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